apparmor: fix policy_compat permission remap with extended permissions

If the extended permission table is present we should not be attempting
to do a compat_permission remap as the compat_permissions are not
stored in the dfa accept states.

Fixes: fd1b2b95 ("apparmor: add the ability for policy to specify a permission table")
Signed-off-by: John Johansen <john.johansen@canonical.com>
Reviewed-by: Jon Tourville <jontourville@me.com>